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Nature of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Nov. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Allowances Against Accounts Receivable | A summary of activity in the allowance for doubtful accounts is as follows (in thousands):
| November 30, 2017 |  | November 30, 2016 |  | November 30, 2015
Beginning balance | $ | 741 |  |  | $ | 1,421 |  |  | $ | 1,646 |
Charge (credit) to costs and expenses | 204 |  |  | (256 | ) |  | 271 |
Write-offs and other | (437 | ) |  | (370 | ) |  | (512 | )
Translation adjustments | (10 | ) |  | (54 | ) |  | 16 |
Ending balance | $ | 498 |  |  | $ | 741 |  |  | $ | 1,421 |
Schedule of Activity in Allowance for Sales Credit Memos | A summary of activity in the allowance for sales credit memos is as follows (in thousands):
| November 30, 2017 |  | November 30, 2016 |  | November 30, 2015
Beginning balance | $ | 402 |  |  | $ | 772 |  |  | $ | 946 |
(Credit) charge to revenue | (158 | ) |  | (223 | ) |  | 182 |
Write-offs and other | (69 | ) |  | (144 | ) |  | (332 | )
Translation adjustments | 3 |  |  | (3 | ) |  | (24 | )
Ending balance | $ | 178 |  |  | $ | 402 |  |  | $ | 772 |
Accumulated Other Comprehensive Loss | Accumulated other comprehensive loss by components, net of tax (in thousands):
| Foreign Currency Translation Adjustment |  | Unrealized Gains (Losses) on investments |  | Total
Balance, December 1, 2015 | $ | (24,582 | ) |  | $ | (46 | ) |  | $ | (24,628 | )
Other comprehensive loss before reclassifications | (3,843 | ) |  | (90 | ) |  | (3,933 | )
Net other comprehensive loss | (3,843 | ) |  | (90 | ) |  | (3,933 | )
Balance, December 1, 2016 | $ | (28,425 | ) |  | $ | (136 | ) |  | $ | (28,561 | )
Other comprehensive income (loss) before reclassifications | 9,655 |  |  | (93 | ) |  | 9,562 |
Net other comprehensive income (loss) | 9,655 |  |  | (93 | ) |  | 9,562 |
Balance, November 30, 2017 | $ | (18,770 | ) |  | $ | (229 | ) |  | $ | (18,999 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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